PAS_MAC_CFG_PCFG
write_mac_reg(mac, PAS_MAC_CFG_PCFG, new_flags);
write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);
write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);
write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);
write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);